an early English prelate, was a pupil of St. Hilda, at Stroneshall, and in 678 was appointed to the bishopric of Deira (Bede, Hist. Ecclesiastes 4:12), with his see at York. In 686, on Wilfrid's restoration, Bosa was expelled, but returned on the second exile of Wilfrid, in 691, and retained his see until his death, in 704 (or 705). He is highly praised by Alcuin, who says that he was a monk. Acca, bishop of Hexham, was brought up in his household. He is honored as a confessor, March 13.